SIST EN 60728-3:2011

SLOVENSKI STANDARD
SIST EN 60728-3:2011
01-julij-2011
1DGRPHãþD
SIST EN 50083-3:2003
SIST EN 60728-3:2008
Kabelska omrežja za televizijske in zvokovne signale ter interaktivne storitve - 3.
del: Aktivna širokopasovna oprema za koaksialna kabelska omrežja (IEC 60728-
3:2010)
Cable networks for television signals, sound signals and interactive services - Part 3:
Active wideband equipment for cable networks (IEC 60728-3:2010)
Kabelnetze für Fernsehsignale, Tonsignale und interaktive Dienste - Teil 3: Aktive
Breitbandgeräte für koaxiale Kabelnetze (IEC 60728-3:2010)
5pVHDX[GHGLVWULEXWLRQSDUFkEOHVSRXUVLJQDX[GHWpOpYLVLRQVLJQDX[GHUDGLRGLIIXVLRQ
VRQRUHHWVHUYLFHVLQWHUDFWLIV3DUWLH0DWpULHODFWLIjODUJHEDQGHSRXU
UpVHDX[GHGLVWULEXWLRQSDUFkEOHV&(,
Ta slovenski standard je istoveten z: EN 60728-3:2011
ICS:
33.060.40 Kabelski razdelilni sistemi Cabled distribution systems
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
SIST EN 60728-3:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60728-3:2011

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SIST EN 60728-3:2011

EUROPEAN STANDARD
EN 60728-3

NORME EUROPÉENNE
February 2011
EUROPÄISCHE NORM

ICS 33.060.40; 33.170 Supersedes EN 60728-3:2006


English version


Cable networks for television signals, sound signals and interactive
services -
Part 3: Active wideband equipment for cable networks
(IEC 60728-3:2010)


Réseaux de distribution par câbles pour Kabelnetze für Fernsehsignale,
signaux de télévision, signaux de Tonsignale und interaktive Dienste -
radiodiffusion sonore et services Teil 3: Aktive Breitbandgeräte für koaxiale
interactifs - Kabelnetze
Partie 3: Matériel actif à large bande pour (IEC 60728-3:2010)
réseaux de distribution par câbles
(CEI 60728-3:2010)




This European Standard was approved by CENELEC on 2011-01-13. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60728-3:2011 E

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SIST EN 60728-3:2011
EN 60728-3:2011 - 2 -
Foreword
The text of document 100/1746/FDIS, future edition 4 of IEC 60728-3, prepared by Technical Area 5,
Cable networks for television signals, sound signals and interactive services, of IEC TC 100, Audio, video
and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was
approved by CENELEC as EN 60728-3 on 2011-01-13.
This European Standard supersedes EN 60728-3:2006.
EN 60728-3:2011 includes the following significant technical changes with respect to EN 60728-3:2006:
– extension of upper frequency range limit for cable network equipment from 862 MHz to 1 000 MHz;
– method of measurement and requirements for immunity to surge voltages;
– extension of scope to equipment using symmetrical ports;
– additional normative references;
– additional terms and definitions and abbreviations.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-10-13
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2014-01-13
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60728-3:2010 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 60728-6:2003 NOTE  Harmonized as EN 60728-6:2003 (not modified).
IEC 60728-10 NOTE  Harmonized as EN 60728-10.
IEC 61169-2 NOTE  Harmonized as EN 61169-2.
IEC 61169-24 NOTE  Harmonized as EN 61169-24.
__________

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SIST EN 60728-3:2011
- 3 - EN 60728-3:2011
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 60065 - Audio, video and similar electronic apparatus -EN 60065 -
Safety requirements


IEC 60068-1 1988 Environmental testing - EN 60068-1 1994
Part 1: General and guidance


IEC 60068-2-1 - Environmental testing - EN 60068-2-1 -
Part 2-1: Tests - Test A: Cold


IEC 60068-2-2 - Environmental testing - EN 60068-2-2 -
Part 2-2: Tests - Test B: Dry heat


IEC 60068-2-6 - Environmental testing - EN 60068-2-6 -
Part 2-6: Tests - Test Fc: Vibration
(sinusoidal)


IEC 60068-2-14 - Environmental testing - EN 60068-2-14 -
Part 2-14: Tests - Test N: Change of
temperature


IEC 60068-2-27 - Environmental testing - EN 60068-2-27 -
Part 2-27: Tests - Test Ea and guidance:
Shock



IEC 60068-2-29 - Environmental testing - EN 60068-2-29 -
Part 2: Tests - Test Eb and guidance: Bump


IEC 60068-2-30 - Environmental testing - EN 60068-2-30 -
Part 2-30: Tests - Test Db: Damp heat, cyclic
(12 h + 12 h cycle)


IEC 60068-2-31 - Environmental testing - EN 60068-2-31 -
Part 2-31: Tests - Test Ec: Rough handling
shocks, primarily for equipment-type
specimens


IEC 60068-2-32 - Environmental testing. EN 60068-2-32 -
Part 2-32: Tests. Test Ed: Free fall


IEC 60068-2-40 - Basic environmental testing procedures - EN 60068-2-40 -
Part 2-40: Tests - Test Z/AM: Combined
cold/low air pressure tests


IEC 60068-2-48 - Environmental testing - EN 60068-2-48 -
Part 2-48: Tests - Guidance on the application
of the tests of IEC 60068 to simulate the
effects of storage


IEC 60529 - Degrees of protection provided by enclosures - -
(IP Code)

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SIST EN 60728-3:2011
EN 60728-3:2011 - 4 -
Publication Year Title EN/HD Year
IEC 60728-1 - Cable networks for television signals, sound EN 60728-1 -
signals and interactive services -
Part 1: System performance of forward paths


IEC 60728-2 - Cabled distribution systems for television and EN 50083-2 -
sound signals -
Part 2: Electromagnetic compatibility for
equipment


IEC 60728-4 - Cable networks for television signals, sound EN 60728-4 -
signals and interactive services -
Part 4: Passive wideband equipment for
coaxial cable networks


IEC 60728-5 - Cable networks for television signals, sound EN 60728-5 -
signals and interactive services -
Part 5: Headend equipment


IEC 60728-11 - Cable networks for television signals, sound EN 60728-11 -
signals and interactive services -
Part 11: Safety


IEC 60950-1 - Information technology equipment - Safety - EN 60950-1 -
Part 1: General requirements


IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 -
Part 4-5: Testing and measurement
techniques - Surge immunity test


IEC 61319-1 - Interconnections of satellite receiving EN 61319-1 -
equipment -
Part 1: Europe


IEC 61319-2 - Interconnections of satellite receiving - -
equipment -
Part 2: Japan


ITU-T - Transmission aspects of unbalance about - -
Recommendation earth
G.117


ITU-T - Measuring arrangements to assess the - -
Recommendation degree of unbalance about earth
O.9

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SIST EN 60728-3:2011

IEC 60728-3
®
Edition 4.0 2010-12
INTERNATIONAL
STANDARD

colour
inside

Cable networks for television signals, sound signals and interactive services –
Part 3: Active wideband equipment for cable networks


INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XB
ICS 33.060.40; 33.170 ISBN 978-2-88912-251-6
® Registered trademark of the International Electrotechnical Commission

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SIST EN 60728-3:2011
– 2 – 60728-3 ã IEC:2010(E)
CONTENTS
FO R EW OR D . 6
IN T R OD U CT ION . 8
1 Sc op e . . 9
2 Normative references . 9
3 Terms, definitions, symbols and abbreviations . 11
3.1 Terms and definitions . 11
3.2 Sym bol s . 15
3.3 Abbreviations . 16
4 Methods of measurement . 17
4.1 Ge ne ral . 17
4.2 Linear distortion . 18
4.2.1 Return loss . 18
4.2.2 Flatness . 19
4.2.3 Chrominance/luminance delay inequality for PAL/SECAM only . 19
4.3 Non-linear distortion . 20
4.3.1 General . 20
4.3.2 Types of measurements. 20
4.3.3 Inte r m od ulation . 20
4.3.4 Composite triple beat . 22
4.3.5 Composite second order beat . 25
4.3.6 Com posite crossmodulation . 26
4.3.7 Method of measurement of non-linearity for pure digital channel load . 29
4.3.8 Hum modulation of carrier. 29
4.4 Automatic gain and slope control step response . 33
4.4.1 Def initions . 33
4.4.2 Equipment required . 33
4.4.3 Connection of equipment . 34
4.4.4 Mea surement procedure . 34
4.5 Noise figure . 35
4.5.1 General . 35
4.5.2 Equipment required . 35
4.5.3 Connection of equipment . 35
4.5.4 Mea surement procedure . 35
4.6 Crosstal k attenuation . 36
4.6.1 Crosstalk attenuation for loop through ports. 36
4.6.2 Crosstalk attenuation for output ports . 36
4.7 Signal level for digitally modulated signals . 38
4.8 Measurement of composite intermodulation noise ratio (CINR ) . 38
4.8.1 General . 38
4.8.2 Equipment required . 38
4.8.3 Connection of equipment . 39
4.8.4 Mea surement procedure . 40
4.8.5 Presentation of the results . 40
4.9 Immunity to surge voltages . 41
4.9.1 General . 41
4.9.2 Equipment required . 42

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SIST EN 60728-3:2011
60728-3 ã IEC:2010(E) – 3 –
4.9.3 Connection of equipment . 42
4.9.4 Mea surement procedure . 42
5 Equipm ent requirem ents . 42
5.1 General requirem ents . 42
5.2 Sa f ety. . 4 3
5.3 Electromagnetic compatibility (EMC) . 43
5.4 Frequency range . 43
5.5 Impedance and return loss . 43
5.6 Ga in . 44
5.6.1 Minimum and maximum gain . 44
5.6.2 Gain control . 44
5.6.3 Slope and slope control . 44
5.7 Fl atness . 44
5.8 Test points . 45
5.9 Group delay. 45
5.9.1 Chrominance/luminance delay inequality . 45
5.9.2 Chrominance/luminance delay inequality for other television
standards and modulation systems . 45
5.10 Noise figure . 45
5.11 Non-linear distortion . 45
5.11.1 General . 45
5.11.2 Second order distortion. 45
5.11.3 Third order distortion . 45
5.11.4 Composite triple beat . 46
5.11.5 Composite second order . 46
5.11.6 Com posite crossmodulation . 46
5.11.7 Maximum operating level for pure digital channel load . 46
5.12 Automatic gain and slope control . 46
5.13 Hum modulation . 46
5.14 Power suppl y . 46
5.15 En vironm ental . 47
5.15.1 General . 47
5.15.2 Storage (simulated effects of) . 47
5.15.3 T ransportation . 47
5.15.4 Installation or maintenance . 47
5.15.5 Operation . 47
5.15.6 Energy efficiency of equipment . 47
5.16 Mar king . 47
5.16.1 Marking of equipment . 47
5.16.2 Marking of ports . 47
5.17 Mean operating time between failure (MTBF) . 48
5.18 Requirements for multi-switches . 48
5.18.1 Control signals for multi-switches . 48
5.18.2 Amplitude frequency response flatness . 48
5.18.3 Return loss . 48
5.18.4 Through loss. 48
5.18.5 Isol ation . 4 8
5.18.6 Crosstalk attenuation . 48
5.18.7 Satellite IF to terrestrial signal isolation . 48

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SIST EN 60728-3:2011
– 4 – 60728-3 ã IEC:2010(E)
5.19 Immunity to surge voltages . 49
5.19.1 Degrees of testing levels . 49
5.19.2 Recommendation of testing level degree . 49
Annex A (informative) Derivation of non-linear distortion . 50
Annex B (normative) Test carriers, levels and intermodulation products . 52
Annex C (normative) Checks on test equipment . 54
Annex D (informative) Test frequency plan for composite triple beat (CTB), composite
second order (CSO) and crossmodulation (XM) measurement . 55
Annex E (informative) Measurement errors which occur due to mismatched equipment . 56
Annex F (informative) Examples of signals, methods of measurement and network
design for return paths . 57
Bibl iog r ap hy . 64

Figure 1 – Maximum error a for measurement of return loss using VSWR-bridge with
directivity D = 46 dB and 26 dB test port return loss . 18
Figure 2 – Measurement of return loss . 19
Figure 3 – Basic arrangement of test equipment for evaluation of the ratio of signal to
intermodulation product . 21
Figure 4 – Connection of test equipment for the measurement of non-linear distortion
by composite beat . 24
Figure 5 – Connection of test equipment for the measurement of composite
c r ossm od ulation . 28
Figure 6 – Carrier/hum ratio . 30
Figure 7 – Test set-up for local-powered objects . 31
Figure 8 – Test set-up for remote-powered objects . 31
Figure 9 – Oscilloscope display. 32
Figure 10 – Time constant T . 33
c
Figure 11 – Measurement of AGC step response . 34
Figure 12 – Measurement of noise figure . 35
Figure 13 – Measurement of crosstalk attenuation for loop trough ports of multi-
sw itc he s . 3 7
Figure 14 – Characteristic of the noise filter . 39
Figure 15 – Test setup for the non-linearity measurement . 39
Figure 16 – Presentation of the result of CINR . 41
Figure 17 – Measurement set-up for surge immunity test . 42
Figure B.1 – An example showing products formed when 2¦ > ¦ . 5 2
a b
Figure B.2 – An example showing products formed when 2¦ < ¦ . 53
a b
Figure B.3 – Products of the form ¦ ± ¦ ± ¦ . 5 3
a b c
Figure E.1 – Error concerning return loss measurement . 56
Figure E.2 – Maximum ripple . 56
Figure F.1 – Spectrum of a QPSK-modulated signal . 57
Figure F.2 – Measurement of non-linearity using wideband noise. 59
Figure F.3 – Network used in the design example . 60
Figure F.4 – A test result measured from a real 20 dB return amplifier . 61
Figure F.5 – The CINR curve of one amplifier is modified to represent the CINR of the
whole coaxial section of the network . 62

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SIST EN 60728-3:2011
60728-3 ã IEC:2010(E) – 5 –
Figure F.6 – The CINR of an optical link as a function of OMI, e xam ple . 63

Table 1 – Correction factors where the modulation used is other than 100 % . 26
Table 2 – Notch filter frequencies . 39
Table 3 – Return loss requirements for all equipment. 44
Table 4 – Parameters of surge voltages for different degrees of testing levels . 49
Table 5 – Recommendations for degree of testing levels . 49
Table D.1 – Frequency allocation plan . 55
Table F.1 – Application of methods of measurement in IEC 60728-3 for return path
eq uipm en t . 5 8
Table F.2 – Application of methods of measurement in IEC 60728-6 for return path
eq uipm en t . 5 8

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SIST EN 60728-3:2011
– 6 – 60728-3 ã IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

CABLE NETWORKS FOR TELEVISION SIGNALS,
SOUND SIGNALS AND INTERACTIVE SERVICES –

Part 3: Active wideband equipment for cable networks


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote interna-
tional co-operation on all questions concerning standardization in the electrical and electronic fields. To this
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tional Organization for Standardization (ISO) in accordance with conditions determined by agreement between
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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all inter-
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...